test-suite/tests/encoding-escapes.test

   1 ;;;; encoding-escapes.test --- test suite for Guile's string encodings -*- mode: scheme; coding: utf-8 -*-
   2 ;;;;
   3 ;;;; Copyright (C) 2009 Free Software Foundation, Inc.
   4 ;;;;
   5 ;;;; This program is free software; you can redistribute it and/or modify
   6 ;;;; it under the terms of the GNU General Public License as published by
   7 ;;;; the Free Software Foundation; either version 2, or (at your option)
   8 ;;;; any later version.
   9 ;;;;
  10 ;;;; This program is distributed in the hope that it will be useful,
  11 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 ;;;; GNU General Public License for more details.
  14 ;;;;
  15 ;;;; You should have received a copy of the GNU General Public License
  16 ;;;; along with this software; see the file COPYING.  If not, write to
  17 ;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18 ;;;; Boston, MA 02110-1301 USA
  19
  20 (define-module (test-strings)
  21   #:use-module (test-suite lib)
  22   #:use-module (srfi srfi-1))
  23
  24 (define exception:conversion
  25   (cons 'misc-error "^cannot convert to output locale"))
  26
  27 ;; Create a string from integer char values, eg. (string-ints 65) => "A"
  28 (define (string-ints . args)
  29   (apply string (map integer->char args)))
  30
  31 (define s1 "última")
  32 (define s2 "cédula")
  33 (define s3 "años")
  34 (define s4 "羅生門")
  35
  36 (with-test-prefix "internal encoding"
  37
  38   (pass-if "ultima"
  39            (string=? s1 (string-ints #xfa #x6c #x74 #x69 #x6d #x61)))
  40
  41   (pass-if "cedula"
  42            (string=? s2 (string-ints #x63 #xe9 #x64 #x75 #x6c #x61)))
  43
  44   (pass-if "anos"
  45            (string=? s3 (string-ints #x61 #xf1 #x6f #x73)))
  46
  47   (pass-if "Rashomon"
  48            (string=? s4 (string-ints #x7f85 #x751f #x9580))))
  49
  50 (with-test-prefix "chars"
  51
  52   (pass-if "ultima"
  53            (list= eqv? (string->list s1)
  54                   (list #\372 #\l #\t #\i #\m #\a)))
  55
  56   (pass-if "cedula"
  57            (list= eqv? (string->list s2)
  58                   (list #\c #\351 #\d #\u #\l #\a)))
  59
  60   (pass-if "anos"
  61            (list= eqv? (string->list s3)
  62                   (list #\a #\361 #\o #\s)))
  63
  64   (pass-if "Rashomon"
  65            (list= eqv? (string->list s4)
  66                   (list #\77605 #\72437 #\112600))))
  67
  68
  69 ;; Check that an error is flagged on display output when the output
  70 ;; error strategy is 'error
  71
  72 (with-test-prefix "display output errors"
  73
  74   (pass-if-exception "ultima"
  75                      exception:conversion
  76                      (let ((pt (open-output-string)))
  77                        (set-port-encoding! pt "ASCII")
  78                        (set-port-conversion-strategy! pt 'error)
  79                        (display s1 pt)))
  80
  81   (pass-if-exception "Rashomon"
  82                      exception:conversion
  83                      (let ((pt (open-output-string)))
  84                        (set-port-encoding! pt "ASCII")
  85                        (set-port-conversion-strategy! pt 'error)
  86                        (display s4 pt))))
  87
  88 ;; Check that questions marks or substitutions appear when the conversion
  89 ;; mode is substitute
  90 (with-test-prefix "display output substitutions"
  91
  92   (pass-if "ultima"
  93            (let ((pt (open-output-string)))
  94              (set-port-encoding! pt "ASCII")
  95              (set-port-conversion-strategy! pt 'substitute)
  96              (display s1 pt)
  97              (string=? "?ltima"
  98                        (get-output-string pt))))
  99
 100   (pass-if "Rashomon"
 101            (let ((pt (open-output-string)))
 102              (set-port-encoding! pt "ASCII")
 103              (set-port-conversion-strategy! pt 'substitute)
 104              (display s4 pt)
 105              (string=? "???"
 106                        (get-output-string pt)))))
 107
 108
 109 ;; Check that hex escapes appear in the write output and that no error
 110 ;; is thrown.  The output error strategy should be irrelevant here.
 111 (with-test-prefix "display output escapes"
 112
 113   (pass-if "ultima"
 114            (let ((pt (open-output-string)))
 115              (set-port-encoding! pt "ASCII")
 116              (set-port-conversion-strategy! pt 'escape)
 117              (display s1 pt)
 118              (string=? "\\xfaltima"
 119                        (get-output-string pt))))
 120   (pass-if "Rashomon"
 121     (let ((pt (open-output-string)))
 122       (set-port-encoding! pt "ASCII")
 123       (set-port-conversion-strategy! pt 'escape)
 124       (display s4 pt)
 125       (string=? "\\u7F85\\u751F\\u9580"
 126                 (get-output-string pt)))))
 127
 128 (with-test-prefix "input escapes"
 129
 130   (pass-if "última"
 131     (with-locale "en_US.utf8"
 132                  (string=? "última"
 133                            (with-input-from-string "\"\\xfaltima\"" read))))
 134
 135   (pass-if "羅生門"
 136     (with-locale "en_US.utf8"
 137                  (string=? "羅生門"
 138                            (with-input-from-string
 139                                "\"\\u7F85\\u751F\\u9580\"" read)))))
 140